Pain inside the root of the penis, may be urethritis, cystitis, prostatitis and other infections, urinary tract stones, penile cavernous sclerosis, etc., suggest further examination. 1. Pain inside the root of the penis can first consider the existence of urethritis, cystitis, seminal vesiculitis and prostatitis and other urinary tract infections exist, inflammation stimulation caused by localized swelling as well as pain and discomfort. 2. If there are bladder stones and ureteral stones and other stones in the urinary system, it is also possible to cause pain at the root of the penis due to stone stimulation. 3. If the pain at the root of the penis occurs during erection, it cannot be excluded that the pain is caused by scleroderma of the penile corpus cavernosum due to chronic fibrous tissue hyperplasia of the penile corpus cavernosum septum. Therefore, if there is pain inside the root of the penis, it is recommended to go to the hospital in time for further examination to clarify the cause.